如何让ImagePicker为Firebase中的所有用户生成标准圆形图像？

// 1. 导入必要的库和框架

// 导入Firebase和ImagePicker的相关库

// 2. 获取用户选择的图像

ImagePicker.getInstance()
        .setTitle("选择图像")
        .start(activity, new ImagePicker.Callback() {
            @Override
            public void onPickImage(Uri imageUri) {
                // 3. 转换为圆形图像
                Bitmap bitmap = BitmapFactory.decodeFile(imageUri.getPath());
                Bitmap circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
                Canvas canvas = new Canvas(circleBitmap);
                Paint paint = new Paint();
                paint.setAntiAlias(true);
                int radius = Math.min(bitmap.getWidth(), bitmap.getHeight()) / 2;
                canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, radius, paint);
                paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
                canvas.drawBitmap(bitmap, 0, 0, paint);

                // 4. 将圆形图像保存到Firebase中
                StorageReference storageRef = FirebaseStorage.getInstance().getReference();
                StorageReference imageRef = storageRef.child("user_profile_image.jpg");
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                circleBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
                byte[] data = baos.toByteArray();
                UploadTask uploadTask = imageRef.putBytes(data);
                uploadTask.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                        // 保存成功后的操作
                    }
                });
            }

            @Override
            public void onPermissionDenied(int requestCode, String[] permissions, int[] grantResults) {
                // 权限被拒绝的操作
            }
        });